“…Fresh water has multiple functions. However, its exploitation as a productive asset to serve economies has prevailed over other roles for decades, resulting in different water footprints-that is, the effect of the impact of human activity on water resources, as volumes allocated to one purpose are no longer available in the same location and period of time for other purposes [2,3]. Traditionally, agriculture, and, later, energy production have represented the most water-intensive activities worldwide.…”